Sumitomo Plastics Machinery all electric plastic injection molding machines manufacturer

SE-HD Injection Features

The mid-sized SE-HD all-electric injection molding machine uses two Sumitomo-built AC servo motors with full closed-loop control and digital sensors for the injection unit. Developed for high-duty applications, the SE-HD’s injection motor provides the ability to consistently maintain very high hold pressure for an extended period of time.

Sumitomo’s extensive experience in designing and manufacturing electric motors ensures that each machine configuration has the absolute best combination of motors to ensure superior performance (the right amount of torque) while keeping the machine reasonably sized and priced.

The SE220HD, for example, employs Sumitomo direct-drive motor technology for injection and screw rotation, regardless of injection unit chosen. The SE450HD is equipped with high-capacity belted motors and the motor for injection uses two, large-load capacity ball screws to ensure highly efficient power transmission and outstanding durability compared to single screw motors. (Consult your Sumitomo representative for the exact combination of motors for the particular tonnage and injection unit size selected.)

Another aspect of the SE-HD is the increased injection capacity for large molded products. On the SE280HD, for example, the injection capacity ranges up to 76.1 in³, as compared with the more typical 43.4 in³ of the predecessor SE280S.

Other advantages of the SE-HD Series injection unit include:

10 modes or ramps of filling speed and hold pressure response that allow the operator to precisely set the plasticizing acceleration and deceleration response

Unerring injection velocity control and exceptional velocity response are provided by the use of direct digital control

Programmable ramping of the velocity and excellent linearity from low- to high-range velocities allows precision molding of diverse applications

New high-contact force nozzle touch system comparable to that of a hydraulic clamp machine

Flash Speed Mode which provides fast response control of velocity and pressure, before and after V/P switchover, to prevent short shots and warp from over-packing

Synchronized Plasticizing Mode, for resins with low viscosity or uneven pellet size, that provides optimized control of both screw position and back pressure, ensuring plasticizing stability

New SD screw which is designed to ensure the stability of the melt, contributing to the consistent quality and improved yield

Optional low-shear, low-temperature SM screw

Please use the Info buttons above at right for more information about SE-HD Series mid-sized all-electric injection molding machines.

SE-HD Info

Brochure pdf